Answer:
24 kids in the classroom.
HELPPP LAST ATTEMPT!!
Answer:
Step-by-step explanation:
I answered this same question but uhm it’s (-6,3) just click on my pfp to see where I answered it :3
Solve the system of equations using the substitution method.
-5x + 21 = 18
y= 2x+8
Answer:
(-3;2)
Step-by-step explanation:
if the first equation is -5x+21=18y, then:
[tex]\left \{ {{y=2x+8} \atop {-5x+21=18*(2x+8)}} \right. \ => \ \left \{ {{y=2x+8} \atop {-5x+21=36x+144}} \right. \ => \ \left \{ {{y=2x+8} \atop {41x=-123}} \right. \ => \ \left \{ {{y=2} \atop {x=-3}} \right.[/tex]
Prove that a line that divides two sides of a triangle proportionally is
parallel to the third side.
1.
1. Let ABC be a triangle. Segment
DE intersects sides AB and CA,
respectively and divides those
sides proportionally, As such,
ADIAB=AE/AC
2
2.
3. Triangles ADE and ABC are
3.
4.
4.
5. Segments DE and BC must be
to one
another
5. By the Converse of the
Theorem
Answer:
Step-by-step explanation:
If (from the image attached) DE is a line segment that divides the sides AB and AC proportionally in ΔABC then we can prove that line segment DE is parallel to BC using the parallel transversal theorem. Based the parallel transversal theorem, the triangles ABC and ADE are similar therefore angles are congruent and line DE must be parallel to line BC
PLEAS ill mark brainliest
Answer:
pede PO ba na iba namn PO yng question Kasi medyo bobo ako ehg
Step-by-step explanation:
ako na sasabi
Answer:
Es la B creo sorry si está mal
8×100+4×10+7×110+3×1100
Answer:
4910 - i think
Step-by-step explanation:
Answer:
4,910
Step-by-step explanation:
Which statement represents the expression?
3×2+5
a.the product of 3 and the sum of 2 and 5
b.3 times the sum of 2 and 5
c.3 times 2 plus 5
d.the product of 3 and 2 combined with 5
Answer:
answer is D (the product of 3 and 2 combined with 5)
because, product of 3 and 2 = 3x2 = 6 and 6+5 = 11.
hope it helps u...
Answer:
c.3 times 2 plus 5
Step-by-step explanation:
pretty sure its right
Evaluate the expression when x = 1/4 and y = 1/2
2 (1/16 + x2) + 5y
Answer:
2 3/4
Step-by-step explanation:
x = 1/4
y = 1/2
so we have to plug in these numbers wherever we see x and y
2 (1/16 + (1/4)^2) + 5(1/2)
using pemdas we solve what's in the parenthesis first
(1/16 + (1/4)^2) = (1/8)
next is multiplication so
2 (1/8) = 1/4 and 5(1/2) = 5/2
lastly we add so
1/4 + 5/2 = 11/4 or 2 3/4
The function f(x) = {' is reflected across the y-axis to create the function g(x). Which ordered pair is on g(x)?
=
0 1-3,375)
0 1-2
o (2.7
0 (3, -125
Answer:
0 1-3,375)
Step-by-step explanation:
What are the solutions of this quadratic equation? x2 + 10 = 0 A. B. C. D.
Answer:
x2+10=0A.B.C.D.
it is A because 0 can't enter into a letter if it can enter then it will be the same letter
A person bikes 2
1
2
miles at a constant rate in
1
8
of an hour.
What distance, in miles, does the person bike in an hour?
Answer:
The person bikes 20 miles in an hour
Step-by-step explanation:
if you get it right ill bark brainliest
Answer:
diagonals does not intersect at right angles
Step-by-step explanation:
In parallelogram diagonals does not intersect at right angles.
The finishing times for a race happen to be normally distributed with a mean of 10.2 seconds and a standard deviation of 1.4 seconds. Find the cut off score for the top 10%. Interpret this result.
Using the normal distribution, it is found that the cut off score for the top 10% is of 8.4 seconds. It means that a person with a time of 8.4 seconds or lower is in the faster 10% of runners.
In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem:
Mean of 10.2 seconds, hence [tex]\mu = 10.2[/tex]Standard deviation of 1.4 seconds, hence [tex]\sigma = 1.4[/tex].The lower the times, the faster the runners are, hence, the cut off score for the top 10% is the 10th percentile, which is X when Z has a p-value of 0.1, so X when Z = -1.28.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-1.28 = \frac{X - 10.2}{1.4}[/tex]
[tex]X - 10.2 = -1.28(1.4)[/tex]
[tex]X = 8.4[/tex]
The cut off score for the top 10% is of 8.4 seconds. It means that a person with a time of 8.4 seconds or lower is in the faster 10% of runners.
A similar problem is given at https://brainly.com/question/24663213
600+600+200-200 Giving Brainliest
Answer:
600+600+200-200=1200
Consider the function f ( x ) = cos ( 0.65 x ) f(x)=cos(0.65x). How much does x x have to vary for the argument of f f to vary by 2 π 2π?
We want to see how much must vary x so the argument of f(x) varies by 2 pi. We will see that x must vary (2π)/0.65.
So let's take the variation from 0 to 2π.
The argument is zero when x = 0
Argument = 0.65*x
if x = 0
Argument = 0.65*0 = 0
Now let's see which must be the value of x such that the argument is equal to 2π, so we must solve:
2π = 0.65*x
(2π)/0.65 = x
So we can see that x must vary from 0 to (2π)/0.65, or just a variation of (2π)/0.65.
If you want to learn more, you can read:
https://brainly.com/question/6904750
Multiply 7x43 True or false .Using partial products the products are 21 and 28
Answer:
thats false
Step-by-step explanation:
you need to use 21 and 280 because if you split the 43 you do 40x7
and 7x3
Jada paints a circular table that has a diameter of 44 inches. What is the area of the table? Round to the nearest whole number!!!
Felisa read the first 60 pages of a book in 3 days. She reads the last 90 pages in 6 days. Are these reading rates equivalent? Explain your reasoning.
Need help fast plzzz
whats the greatest common factor of 18 and 27 and 54
Answer: 9
Step-by-step explanation:
From doing the math I think it should be 9
Start with the smallest number, 18:
The factors of 18 are: 1, 2, 3, 6, 9, 18.
So the GCF for all three must be one of those.
Now consider the next smallest number. Of the factors of 18, only these are also factors of 27:
1, 3, 9
Now consider the last number, 54. Of the remaining factors, 9 is the greatest and 9 goes into 54.
The GCF is 9.
By starting with the smallest number, you usually limit how many factors you'll ever need to consider.
Christopher bought 15 feet of fabric from Walmart. The fabric cost $1.75
per foot, including sales tax. If Christopher gave the cashier $30, how much
change should he receive?
O $2.40
$6.00
$8.55
O $3.75
Answer:
He should recieve 3.75 in change
Step-by-step explanation:
1.75x15=26.25
30-26.25=3.75
A football coach filled a water cooler with 37.85 liters of water before a game. The players drank 25.9 liters during their game. How many liters of water were left in the cooler?
Answer:
37.85 subtract by 25.9 that's how I got 11.95 liters left
help me with math and ill mark brainliest
Answer:
226
Step-by-step explanation:
In the given picture,
Trapezoid PQRS has two points T and U as the midpoints of sides PS and RQ.
Segment TU joins the midpoints of the sides PS and RQ.
Mid-segment theorem states that "If a line joining midpoints of a trapezoid is parallel to the bases, length of this segment is half the sum of lengths of the bases."
Therefore, m(TU) =
7x - 26 =
7x - 26 = 6x + 10
7x - 6x = 26 + 10
x = 36
m(TU) = 7x - 26
= 7(36) - 26
= 252 - 26
= 226
Therefore, Option (1) will be the answer.
Find
h ′(2), given that f(2) = −3, g(2) = 4, f ′(2) = −2,and g ′(2) = 5.
I only need help with part d (picture attached)
Answer: [tex]-\frac{1}{2}[/tex]
=========================================================
Work Shown:
Apply the quotient rule
[tex]h(x) = \frac{g(x)}{1+f(x)}\\\\h(x) = \frac{A}{B}\\\\h'(x) = \frac{A'*B-A*B'}{B^2}\\\\h'(x) = \frac{g'(x)*(1+f(x))-g(x)*(1+f(x))'}{(1+f(x))^2}\\\\h'(x) = \frac{g'(x)*(1+f(x))-g(x)*f'(x)}{(1+f(x))^2}\\\\h'(2) = \frac{g'(2)*(1+f(2))-g(2)*f'(2)}{(1+f(2))^2}\\\\h'(2) = \frac{5*(1-3)-4*(-2)}{(1-3)^2}\\\\h'(2) = \frac{-2}{4}\\\\h'(2) = -\frac{1}{2}\\\\[/tex]
The radius of the earth is approximately 6400 km. The equator is the circle around the earth dividing it into the northern and southern hemisphere. (The center of the earth is also the center of the equator.) What is the length of the equator?
Use 3.14 for .Round your answer to the nearest ten thousand.
Answer:
Length of equator = 40212.39 km
Step-by-step explanation:
Hope this helps! Please mark brainliest for you can! :)
Answer:
40,000 km
Step-by-step explanation:
The circumference is given by the formula ...
C = 2πr
For the given values of π and radius, the circumference is ...
C = 2·3.14·6400 km = 40,192 km
Rounded to the nearest 10,000, the length of the equator is 40,000 km.
_____
Additional comment
The original definition of the meter was 1/10,000,000 of the distance from the north pole to the equator, through Paris. Essentially, the polar circumference of the earth was defined as about 40,000 km. The polar distance in the southern hemisphere will differ from that in the northern hemisphere, and apparently, the chosen longitude also makes a difference. All of these are different from the equatorial circumference. That definition has long been superseded.
What is the probability of choosing a red ace of clubs from a standard deck of cards????
Answer:
0
Step-by-step explanation:
The ace of clubs is black.
There is no red ace of clubs.
p(red ace of clubs) = 0
Answer:
Step-by-step explanation:
There is no Red ace of club. All the clubs are black in colour. So the probability is 0
For the triangle shown on the left,
find the length of the side labeled x
find the measure of angle A in degrees
Answer:
The mesure for angle A is 60 degrees. The leangth for side X is 28
Step-by-step explanation:
game where speed
Train B
300
Distance (mi)
200
Distance 1000
100
2 4
Time (h)
Aega seed
Tanase greater speed
They bome the same speed
D
to be termine which tranhas the greater speed
Answer:
300 train b
Step-by-step explanation:
train b is the right answer
How is this problem to be solved?
Step-by-step explanation:
I hope this helps you!!!!!!
Draw a diagram to represent 3 ÷ 2/5
Answer:
a diagram? or just how to solve it
Step-by-step explanation:
plz help need this done by tomorrow thank you [Photo]
Answer:
angle 5
Step-by-step explanation:
angle 5 is in the same position as angle 3.
Answer:
angle 5 corresponds angle 3.
